<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: WSUS Statistics Sensor

Performance impact

This sensor has a high performance impact. We recommend that you use no more than 200 of this sensor on each probe.

WSUS 3.0 Administration Console

This sensor requires the Microsoft WSUS 3.0 Administration Console on the probe system. In a cluster, it must be installed on every cluster node.

.NET 4.7.2 or later

This sensor requires .NET 4.7.2 or later from Microsoft on the probe system. In a cluster, install it on every cluster node. If the sensor shows the error PE087, additionally install .NET 3.5 on the probe system.

If the framework is missing, you cannot create this sensor.

For more information, see the Knowledge Base: Which .NET version does PRTG require?

Windows Server

We recommend Windows Server 2016 on the probe system for best performance of this sensor.

Credentials

This sensor requires credentials for Windows systems.

We recommend that you use Windows domain credentials. If you use local credentials, make sure that the same Windows user accounts (with the same user name and password) exist on both the probe system and the target system. Otherwise, the sensor cannot correctly connect.

IPv6

This sensor supports IPv6.

Knowledge Base

Knowledge Base: Can I encrypt connections to my WSUS server?

Hosted probe

You cannot add this sensor to the hosted probe of a PRTG Hosted Monitor instance. If you want to use this sensor, add it to a remote probe device.

WSUS Server Port

Enter the number of the port the WSUS server service runs on. The default value is 8530. Enter an integer.

Connection Security

Define if you want to use Secure Sockets Layer (SSL)/Transport Layer Security (TLS) for the connection to the WSUS server or if you prefer unsecured connections:

• Use SSL/TLS
• Do not use connection security (default)

If you want to use SSL/TLS, you must configure the WSUS server accordingly. For more information, see the Knowledge Base: Can I encrypt connections to my WSUS server?

Result Handling

Define what PRTG does with the sensor result:

• Discard result (default): Do not store the sensor result.
• Store result: Store the sensor result and the last response in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file names are Result of Sensor [ID].txt and Result of Sensor [ID].Data.txt. This setting is for debugging purposes. PRTG overwrites these files with each scanning interval.

In a cluster, PRTG stores the result in the PRTG data directory of the master node.

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Approved Updates

The number of approved updates

Computers Having Update Errors

The number of computers that have update errors

Computers Needing Updates

The number of computers that need updates

Computers Not Synchronized for 7 Days

The number of computers that have not synchronized for seven days

Computers Registered

The number of computers that are registered

Computers Up To Date

The number of computers that are up to date

Declined Updates

The number of updates that were declined

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status.

Expired Updates

The number of updates that are expired

Not Approved Critical Or Security Updates

The number of critical or security updates that were not approved

Not Approved Updates

The number of updates that were not approved

Total Updates

The total number of updates

Unapproved, Needed Updates

The number of updates that are unapproved but needed

Updates Needed By Computers

The number of updates that computers need

Updates Needing Files

The number of updates that need files

Updates Up To Date

The number of updates that are up to date

Updates With Client Errors

The number of updates that have client errors

Updates With Server Errors

The number of updates that have server errors

Updates With Stale Update Approvals

The number of updates that have stale update approvals

WSUS Infrastructure Updates Not Approved For Install

The number of WSUS infrastructure updates that were not approved for installation